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Green Crystals

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Grow sparkling, green crystals overnight from a safe solution of potassium aluminum sulfate. Single out the largest crystal shard, re-dissolve the remaining crystals, and repeat the crystal formation process to grow a larger, more striking crystal. These kits include all the materials and tools you need to grow a single crystal, as well as a small hexagonal storage box in which to keep your crystal safe.

  • Features and Benefits:

    • Ages 10+
    • 10 page manual


    WARNING: This set contains chemicals [and/or parts] that may be harmful if misused. Read cautions on individual containers [and in manual] carefully. Not to be used by children except under adult supervision.

    WARNING: CHOKING HAZARD - Small parts - Not for children under 3 yrs.


    • Grow dazzling crystals!
    • Learn about geometry and the structure of crystals, solubility and solutions, the formation of minerals, and more
    • Parents' Choice Recommended Award Winner